1260747013520 has 20 divisors (see below), whose sum is σ = 2931236806620. Its totient is φ = 504298805376.

The previous prime is 1260747013517. The next prime is 1260747013529. The reversal of 1260747013520 is 253107470621.

It can be written as a sum of positive squares in 2 ways, for example, as 859759181824 + 400987831696 = 927232^2 + 633236^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1260747013529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7879668755 + ... + 7879668914.

It is an arithmetic number, because the mean of its divisors is an integer number (146561840331).

Almost surely, 2^{1260747013520} is an apocalyptic number.

1260747013520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260747013520 is an abundant number, since it is smaller than the sum of its proper divisors (1670489793100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1260747013520 is a wasteful number, since it uses less digits than its factorization.

1260747013520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15759337682 (or 15759337676 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 1260747013520 in words is "one trillion, two hundred sixty billion, seven hundred forty-seven million, thirteen thousand, five hundred twenty".